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Moon, Meteorites, and Misc.

Moon, Meteorites, and Misc. 1. What are the causes of the seasons on the earth?. THE TILT OF THE EARTH’S AXIS (23.5 DEGREES) NORTH HEMISPHERE TILTS AWAY (WINTER) THEN TOWARDS THE SUN (SUMMER). 2. What would our seasons be like if the earth’s axis were not tilted?.

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Moon, Meteorites, and Misc.

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  1. Moon, Meteorites, and Misc.

  2. 1. What are the causes of the seasons on the earth? • THE TILT OF THE EARTH’S AXIS (23.5 DEGREES) • NORTH HEMISPHERE TILTS AWAY (WINTER) • THEN TOWARDS THE SUN (SUMMER)

  3. 2. What would our seasons be like if the earth’s axis were not tilted? There would be no variation in season Seasons would depend on how far from the equator you happen to be

  4. 3. What is the difference between apogee and perigee? APOGEE – The point in the moon’s orbit farthest from the planet PERIGEE – The point in the moon’s orbit closest to the planet

  5. The moon at apogee and perigee

  6. 4. Label and draw the positions of the earth, moon, and sun during total solar and lunar eclipses.

  7. Solar Eclipse: When the earth, moon, and sun are aligned such that the earth’s view of the _______ is blocked out. sun

  8. The Solar Eclipse Will only occur during a NEW MOON WHY ??? - Since the moon is illuminated on the side we don’t see, we see only a dark disc.

  9. SOLAR ECLIPSE Moon’s shadow on the Earth

  10. Lunar Eclipse: When the earth, moon, and sun are aligned such that the earth’s view of the _______ is blocked out. moon

  11. The Lunar Eclipse Will only occur during a FULL MOON WHY ??? - Since the moon is illuminated on the side we see, we see a bright disc.

  12. Define the following terms: • ASTEROID: BITS AND PARTS OF OLD PLANET MATERIAL • ASTEROID COLLISION: ASTEROIDS BREAK INTO SMALLER BITS

  13. Define the following terms: 3. METEOROID: ASTEROID MATERIAL FALLING TOWARDS THE EARTH 4. METEOR: MATERIAL BURNING AS IT FALLS THROUGH THE ATMOSPHERE 5. METEORITE: METEOR THAT REACHES THE EARTH’S SURFACE

  14. 6. What is a comet? • A SMALL, ICY OBJECT THAT ORBITS ABOUT THE SUN IN A VERY, VERY LONG, THIN ELLIPSE • THE TAIL ALWAYS EXTENDS AWAY FROM THE SUN • 1 – 10 KM IN SIZE

  15. 7. Explain how and why we see comets from the earth • AT APHELION, THE COMET IS BEYOND THE ORBIT OF PLUTO • AT PERIHELION, THE COMET IS VERY CLOSE TO THE SUN AND BEGINS TO EVAPORATE TO FORM A GLOWING HEAD AND TAIL.

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